13791997780

Names of 13791997780

• Cardinal: 13791997780 can be written as Thirteen billion, seven hundred ninety-one million, nine hundred ninety-seven thousand, seven hundred eighty.

Scientific notation

• Scientific notation: 1.379199778 × 10¹⁰

Factors of 13791997780

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 173696

Divisors of 13791997780

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 5 10 11 19 20 22 38 44 55 76 95 110 190 209 220 361 380 418 722 836 1045 1444 1805 2090 3610 3971 4180 7220 7942 15884 19855 39710 79420 173659 347318 694636 868295 1736590 1910249 3299521 3473180 3820498 6599042 7640996 9551245 13198084 16497605 19102490 32995210 36294731 38204980 62690899 65990420 72589462 125381798 145178924 181473655 250763596 313454495 362947310 626908990 689599889 725894620 1253817980 1379199778 2758399556 3447999445 6895998890 13791997780
• Sum of all divisors σ(n): 33346887840
• Sum of proper divisors (its aliquot sum) s(n): 19554890060
• 13791997780 is an abundant number, because the sum of its proper divisors (19554890060) is greater than itself. Its abundance is 5762892280

Bases of 13791997780

• Binary: 1100110110000100010010111101010100₂
• Hexadecimal: 0x336112F54
• Base-36: 6C3EDLG

Squares and roots of 13791997780

• 13791997780 squared (13791997780²) is 190219202763524928400
• 13791997780 cubed (13791997780³) is 2623502822227905677467458952000
• The square root of 13791997780 is 117439.3365955377
• The cube root of 13791997780 is 2398.1465887387

Scales and comparisons

• 13,791,997,780 seconds is equal to 438 years, 28 weeks, 1 day, 14 hours, 29 minutes, 40 seconds.
• To count from 1 to 13,791,997,780 would take you about eight hundred seventy-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 13791997780 cubic inches would be around 199.8 feet tall.

Recreational maths with 13791997780

• 13791997780 backwards is 08779919731
• The number of decimal digits it has is: 11
• The sum of 13791997780's digits is 61
• More coming soon!